Radiological Evaluation of Brain and Skull Tumors Using Computed Tomography

Authors

  • Abrar Adel Mohammed Al-Sharji Author
  • Doaa Hussein Ahmed Al-Okad Author
  • Najla Najib Ahmed Al-Hazmi Author
  • Rudaina Abdul Wahid Al-Sheikh Author
  • Suad Mohammed Qasim Al-Qasimi Author
  • Samat Saleh Mohammed Al-Dhabri Author
  • Walaa Ahmed Mohammed Al-Ghazali Author
  • Younes Abdullah Mohamed Al Qadri Author
  • Dr.Ibrahim Al-Hamadi Author

DOI:

https://doi.org/10.65693/irss.2026.v7i2.175

Keywords:

Brain tumors, Skull neoplasms, CT imaging, Resource-limited settings, Neuro-oncology

Abstract

Background: Brain and skull tumors are major causes of neurological morbidity. In resource-limited settings like Yemen, where MRI is often unavailable, CT remains the primary diagnostic tool. However, systematic data on CT characteristics of these tumors in the Yemeni population are lacking. This study evaluates the demographic and multi-parametric CT features of brain and skull tumors at the National Oncology Center, Sana'a, Yemen.

Methods: A descriptive cross-sectional study was conducted from October 2025 to February 2026, including 52 consecutive patients (age 2–75 years) with confirmed brain or skull tumors who underwent contrast-enhanced CT. Demographic data, tumor characteristics, and CT features (density, enhancement, necrosis, calcification, edema, mass effect) were analyzed using SPSS version 23.0, with significance set at p < 0.05.

Results: Females predominated (65.4%). Metastatic tumors were most frequent (46.2%), followed by primary CNS tumors (40.4%); breast cancer was the leading primary source (17.3%). The cerebral region was the most common location (48.1%). Multiple lesions were significantly more frequent in metastases (54.2%) than primary tumors (28.6%) (p=0.002). Significant correlations included paraganglioma with iso-density (r=0.68) and calcification (r=0.82); orbital tumors with iso-density (r=0.72); and metastases with necrosis (r=0.45). Key co-occurrence patterns were strong enhancement with necrosis in metastases (p=0.001) and hyperdensity with calcification in meningiomas (p=0.004).

Conclusion: CT effectively characterizes brain and skull tumors in resource-limited settings. Distinct CT feature patterns and their statistical associations provide a basis for a preliminary diagnostic algorithm, enhancing early diagnosis and clinical decision-making where advanced imaging or histopathology is unavailable.

References

1. Al-Akwa, S., Al-Ataki, A., Al-Awadhi, A., Abdulmoghani, I., Al-Madoumi, I., Al-Wesabi, M., Al-Samei, A., Al-Hajjaji, B., Al-Doais, T., Salem, R., Jarwash, F., Al-Nofeesh, M., Al-Azizi, J., & Al-Nazari, M. (2024). The Role of Governance in Improving the Quality of Healthcare Services in Yemeni Hospitals: (A Case Study of the Republican Teaching Hospital Authority). Institutional Repository for Scientific Scholarship at 21 September University for Medical and Applied Sciences, 5(1), 1-133. https://doi.org/10.65693/irss.2024.v5i1.39

2. Al-Asadi, M. Y. M., et al. (2025). Defying Deprivation: Neurosurgical Outcomes and 75% Six-Month Survival in 96 Primary Brain Tumor Cases Amid Yemen's Humanitarian Crisis. World Neurosurgery, 124526.

3. Al-Wesabi, M. M., & Eskander, N. A. (2026). The Impact of Pregnant Women’s Dietary Behavior on the Physiological Adaptation Paradox and Maternal-Fetal Resource Conflict in Conflict Settings: A Predictive Analytical Study. medRxiv, 2026-06.‏ https://doi.org/10.64898/2026.06.17.26355845

4. Al-Wesabi, M., & Jarallah, M. (2024). The Reality of Training Quality and its Role in Improving the Performance of Operating Theater Technicians in Yemeni Hospitals: A Comparative Analytical Study Between the Republican Teaching Hospital Authority and Kuwait University Hospital. Institutional Repository for Scientific Scholarship at 21 September University for Medical and Applied Sciences, 5(1), 1-92. https://doi.org/10.65693/irss.2024.v5i1.49

5. Al-Wesabi, M., & Munassar, S. (2026). Enterprise Risk Management and Patient Safety in War-Torn Healthcare Systems: A Cross-Sectional Study in Yemeni Referral Hospitals. Journal of Administrative Sciences, 1(2). https://doi.org/10.65693/jas.2026.v1i1.1

6. Al-Wesabi, MM. Measar, MA. Eskander, NA. (2026). The Overlapping Impact of Lighting Conditions and Floor Types on Physiological and Physical Stress Among Surgical Staff: A Field Study in Government Hospitals in Sana’a, 18 June 2026, PREPRINT (Version 1) available at Research Square. https://doi.org/10.21203/rs.3.rs-10035224/v1

7. Alyahawi A, Measar M, Alwesabi M, Alkaf A. (2024). Clinically Significant Statin-Drug Interactions in Older Patients with Chronic Diseases. Pharmaceutical Research - Recent Advances and Trends Vol. 4, B P International, pp.1-21. https://doi.org/10.9734/bpi/prrat/v4/598

8. American Society of Clinical Oncology. (2022). Computed tomography (CT) scan. Cancer.Net. https://www.cancer.net/navigating-cancer-care/diagnosing-cancer/tests-and-procedures/computed-tomography-ct-scan

9. Arora, A., et al. (2022). Imaging of Skull Base Tumors: A Comprehensive Review. Neuroimaging Clinics of North America, 32(2), 351–370.

10. Atlas, S. W. (1990). Magnetic Resonance Imaging of the Brain and Spine. Raven Press.

11. Bae, K. T. (2010). Intravenous Contrast Medium Administration and Scan Timing at CT: Considerations and Approaches. Radiology, 256(1), 32–61.

12. Bintang, K. S., Novirianthy, R., & Hidayaturrahmi, H. (2024). Imaging Profile of Intracranial Tumors at Dr. Zainoel Abidin Regional General Hospital Banda Aceh. Indonesian Journal of Cancer, 18(2).

13. Bondy, M. L., Scheurer, M. E., Malmer, B., Barnholtz-Sloan, J. S., Davis, F. G., Il'yasova, D., ... & Brain Tumor Epidemiology Consortium. (2008). Brain tumor epidemiology: Consensus from the Brain Tumor Epidemiology Consortium. Cancer, 113(7 Suppl), 1953–1968.

14. Brant-Zawadzki, M., Norman, D., Newton, T. H., Kelly, W. M., Kjos, B., Mills, C. M., Dillon, W. P., Sobel, D., & Crooks, L. E. (1984). Magnetic Resonance Imaging of the Brain: The Optimal Screening Technique. Radiology, 152(1), 71–77.

15. Buhl, R., Barth, H., Hugo, H. H., Mautner, V. F., & Mehdorn, H. M. (2004). Intracranial and spinal melanotic schwannoma in the same patient. Journal of Neuro-Oncology, 68(3), 249–254. https://doi.org/10.1023/B:NEON.0000033491.23654.6c

16. Casselman, J. W., De Jonge, I., Neyt, L., De Clercq, C., & D'Hont, G. (1993). MRI in craniofacial fibrous dysplasia. Neuroradiology, 35(3), 234–237. https://doi.org/10.1007/BF00588505

17. Casselman, J. W., Vanden Bossche, S., Pretorius, E., & De Foer, B. (2019). Skull-base tumors and related disorders. In F. Barkhof, R. Jager, M. Thurnher, & A. Rovira Cañellas (Eds.), Clinical neuroradiology. Springer.

18. Casselman, J., et al. (2019). Imaging of the Skull Base. In Skull Base Imaging. Elsevier.

19. Chang, J. E., Khuntia, D., Robins, H. I., & Mehta, M. P. (2007). Radiotherapy and radiosensitizers in the treatment of glioblastoma multiforme. Clinical Advances in Hematology & Oncology, 5(11), 894–902.

20. Chowdhury, F. H., Haque, M. R., Kawsar, K. A., Sarker, M. H., Hasan, M., & Goel, A. N. (2014). Intracranial nonvestibular neurinomas: Young neurosurgeons' experience. Journal of Neurosciences in Rural Practice, 5(3), 231–243. https://doi.org/10.4103/0976-3147.133566

21. Clark, W. C., et al. (1985). Brain tumors in children. Neurologic Clinics, 3(4), 787–802.

22. Clarke, C. R. A. (2005). Neurological diseases. In P. Kumar & M. Clark (Eds.), Kumar & Clark clinical medicine (6th ed., pp. 1244–1245). Elsevier Saunders.

23. Dahlen, R. T., Johnson, C. E., Harnsberger, H. R., Biediger, C. P., Syms, C. A., Fischbein, N. J., & Schwartz, J. M. (2002). CT and MR imaging characteristics of intravestibular lipoma. American Journal of Neuroradiology, 23(8), 1413–1417.

24. Dandy, W. E. (1918). Ventriculography following the injection of air into the cerebral ventricles. Annals of Surgery, 68(1), 5–11.

25. Dolecek, T. A., Propp, J. M., Stroup, N. E., & Kruchko, C. (2012). CBTRUS statistical report: Primary brain and central nervous system tumors diagnosed in the United States in 2005-2009. Neuro-Oncology, 14(Suppl 5), v1–v49.

26. Ellika, S. K., Jain, R., Patel, S. C., Scarpace, L., Schultz, L. R., Rock, J. P., & Mikkelsen, T. (2007). Role of Perfusion CT in Glioma Grading and Comparison with Conventional MR Imaging Features. American Journal of Neuroradiology, 28(10), 1981–1987.

27. Farid, N. (2014). Imaging of vestibular schwannoma and other cerebellopontine angle tumors. Operative Techniques in Otolaryngology-Head and Neck Surgery, 25(1), 87–95. https://doi.org/10.1016/j.otot.2013.11.011

28. Fink, K. R., & Fink, J. R. (2013). Imaging of brain metastases. Surgical Neurology International, 4(Suppl 4), S209–S219.

29. Fujimoto, K., Ohnishi, H., Tsujimoto, M., Hashida, T., & Nakazato, Y. (2000). Dysembryoplastic neuroepithelial tumors of the cerebellum and brainstem. Journal of Neurosurgery, 93(3), 487–489.

30. Furie, D. M., & Provenzale, J. M. (1995). Supratentorial ependymomas and subependymomas: CT and MR appearance. Journal of Computer Assisted Tomography, 19(4), 518–526.

31. Gillies, R. J., Kinahan, P. E., & Hricak, H. (2016). Radiomics: Images Are More than Pictures, They Are Data. Radiology, 278(2), 563–577.

32. Gomez, C. K., et al. (2018). Calcified brain tumors: A practical imaging review. Radiographics, 38(3), 894–910.

33. Greenberg, H. S., et al. (1999). Handbook of Neurosurgery. Thieme.

34. Hoang-Xuan, K., Bessell, E., Bromberg, J., Hottinger, A. F., Preusser, M., Rudà, R., & European Association for Neuro-Oncology Task Force on Primary CNS Lymphoma. (2015). Diagnosis and treatment of primary CNS lymphoma in immunocompetent patients: Guidelines from the European Association for Neuro-Oncology. The Lancet Oncology, 16(7), e322–e332.

35. Houillier, C., Choquet, S., Touitou, V., Martin-Duverneuil, N., Navarro, S., Mokhtari, K., ... & Hoang-Xuan, K. (2015). Lenalidomide monotherapy as salvage treatment for recurrent primary CNS lymphoma. Neurology, 84(3), 325–326.

36. Iida, E., & Anzai, Y. (2017). Imaging of paranasal sinuses and anterior skull base and relevant anatomic variations. Radiologic Clinics of North America, 55(1), 31–52. https://doi.org/10.1016/j.rcl.2016.08.009

37. Iqbalawati, I., et al. (2025). Intracranial tumors on CT and MRI: The association of imaging characteristics with histopathological findings. Bali Medical Journal, 14(3).

38. Korfel, A., Thiel, E., Martus, P., Möhle, R., Griesinger, F., Rauch, M., ... & Fischer, L. (2015). Randomized phase III study of whole-brain radiotherapy for primary CNS lymphoma. Neurology, 84(12), 1242–1248.

39. Kurkawa, R., et al. (2022). Imaging of Oligodendroglioma: A Review of the 2021 WHO Classification. Japanese Journal of Radiology, 40(7), 661–673.

40. Kushchayeva, Y. S., Kushchayev, S. V., Glushko, T. Y., Tella, S. H., Teytelboym, O. M., Collins, M. T., & Boyce, A. M. (2018). Fibrous dysplasia for radiologists: Beyond ground glass bone matrix. Insights into Imaging, 9(6), 1035–1056. https://doi.org/10.1007/s13244-018-0666-6

41. Laigle-Donadey, F., Taillibert, S., Martin-Duverneuil, N., Hildebrand, J., & Delattre, J.-Y. (2005). Skull-base metastases. Journal of Neuro-Oncology, 75(1), 63–69. https://doi.org/10.1007/s11060-004-8099-0

42. Liu, X.-D., Xu, Q.-W., Che, X.-M., & Yang, D.-L. (2009). Trigeminal neurinomas: Clinical features and surgical experience in 84 patients. Neurosurgical Review, 32(4), 435–444. https://doi.org/10.1007/s10143-009-0210-8

43. MacNally, S. P., Rutherford, S. A., Ramsden, R. T., Evans, D. G., & King, A. T. (2008). Trigeminal schwannomas. British Journal of Neurosurgery, 22(6), 729–738. https://doi.org/10.1080/02688690802272172

44. Matias, T. B., Cordeiro, R. A., Duarte, J. A., de Jarry, V. M., Appenzeller, S., Villarinho, L., & Reis, F. (2023). Immune-mediated hypertrophic pachymeningitis and its mimickers: Magnetic resonance imaging findings. Academic Radiology, 30(8), 1675–1686. https://doi.org/10.1016/j.acra.2023.01.017

45. McNamara, C., et al. (2022). An overview of the Central nervous system tumor updates and the 2021 WHO Classification of CNS Tumors for practicing radiologists. Neuroradiology, 64(8), 1471–1487.

46. Moffat, D. A., & Ballagh, R. H. (1995). Rare tumours of the cerebellopontine angle. Clinical Oncology, 7(1), 28–41. https://doi.org/10.1016/S0936-6555(05)80632-6

47. Nelson, M., Diebler, C., & Forbes, W. S. (1991). Paediatric medulloblastoma: Atypical CT features at presentation in the SIOP II Trial. Neuroradiology, 33(2), 140–142.

48. New, P. F., et al. (1980). Computed tomography of meningiomas. Journal of Computer Assisted Tomography, 4(4), 424–435.

49. Nikolopoulos, T. P., Fortnum, H., O'Donoghue, G., & Baguley, D. (2010). Acoustic neuroma growth: A systematic review of the evidence. Otology & Neurotology, 31(3), 478–485. https://doi.org/10.1097/MAO.0b013e3181d279a3

50. Ohgaki, H., & Wiestler, O. D. (2007). The 2007 WHO classification of tumors of the central nervous system. Acta Neuropathologica, 114(2), 97–109.

51. Ostrom, Q. T., Patil, N., Cioffi, G., Waite, K., Kruchko, C., & Barnholtz-Sloan, J. S. (2020). CBTRUS Statistical Report: Primary Brain and Other Central Nervous System Tumors Diagnosed in the United States in 2013-2017. Neuro-Oncology, 22(Supplement_1), iv1–iv96.

52. Paldino, M. J., Faerber, E. N., & Poussaint, T. Y. (2011). Imaging tumors of the pediatric central nervous system. Radiologic Clinics of North America, 49(4), 589–616.

53. Qabban, K. A., Al-Wesabi, M. M. (2025). The Impact of Career Development on Improving Nursing Performance in Yemen Hospitals - Sana’a. Sana’a University Journal of Human Sciences, 4(11), 277-317. https://doi.org/10.59628/jhs.v4i11.1809

54. Qabban, K. A., Al-Wesabi, M. M. (2026). Impact of Career Development Strategies on Sustainable Nursing Performance in Yemen: Testing Patient-Centered JCI Mediation via Structural Equation Modeling, 23 June 2026, PREPRINT (Version 1) available at Research Square. https://doi.org/10.21203/rs.3.rs-10073193/v1

55. Rao, A. B., et al. (1999). Imaging of paragangliomas of the head and neck. Neuroimaging Clinics of North America, 9(3), 525–543.

56. Rao, A. B., Koeller, K. K., & Adair, C. F. (1999). From the archives of the AFIP: Paragangliomas of the head and neck Radiologic-pathologic correlation. RadioGraphics, 19(6), 1605–1632. https://doi.org/10.1148/radiographics.19.6.g99no251605

57. Rigby, P. L., & Jackler, R. K. (1996a). Clinicopathologic presentation and diagnostic imaging of jugular foramen tumors. Operative Techniques in Otolaryngology-Head and Neck Surgery, 7(2), 99–105. https://doi.org/10.1016/S1043-1810(96)80021-2

58. Rigby, P. L., & Jackler, R. K. (1996b). Imaging of glomus jugulare tumors. Otolaryngologic Clinics of North America, 29(3), 439–456.

59. Sakdullah, I., & Yueniwati, Y. (2025). Demographic Profile and CT-MRI Characteristics of Brain Metastasis Patients at Dr Saiful Anwar Hospital: A Retrospective Study. International Journal of Radiology and Imaging, 4(01), 7–17.

60. Silver, A. J., Ganti, S. R., & Hilal, S. K. (1982). Computed tomography of tumors involving the atria of the lateral ventricles. Radiology, 145(1), 71–78.

61. Skolnik, A. D., Loevner, L. A., Sampathu, D. M., Newman, J. G., Lee, J. Y., Bagley, L. J., & Learned, K. O. (2016). Cranial nerve schwannomas: Diagnostic imaging approach. RadioGraphics, 36(5), 1463–1477. https://doi.org/10.1148/rg.2016150199

62. Smirniotopoulos, J. G., Murphy, F. M., Rushing, E. J., Rees, J. H., & Schroeder, J. W. (2007). Patterns of Contrast Enhancement in the Brain and Meninges. RadioGraphics, 27(2), 525–551.

63. Touitou, V., LeHoang, P., & Bodaghi, B. (2015). Primary CNS lymphoma. Current Opinion in Ophthalmology, 26(6), 526–533.

64. Tuan, A. S., Chen, J. Y., & Mafee, M. F. (2014). Glomus tympanicum and other intratympanic masses: Role of imaging. Operative Techniques in Otolaryngology-Head and Neck Surgery, 25(1), 49–57. https://doi.org/10.1016/j.otot.2013.11.007

65. Van Den Berg, R. (2005). Imaging and management of head and neck paragangliomas. European Radiology, 15(7), 1310–1318.

66. Vogl, T., & Bisdas, S. (2009). Differential diagnosis of jugular foramen lesions. Skull Base, 19(1), 3–16. https://doi.org/10.1055/s-0028-1103121

67. Wallace, E. W. (2004). The dural tail sign. Radiology, 233(1), 56–57. https://doi.org/10.1148/radiol.2331021332

68. WHO Classification of Tumours Editorial Board. (2020). Soft tissue and bone tumours (5th ed., Vol. 3). International Agency for Research on Cancer.

69. Zamora, C., & Castillo, M. (2017). Sellar and parasellar imaging. Neurosurgery, 80(1), 17–38. https://doi.org/10.1093/neuros/nyw013

70. Zhang, L., Yang, Y., Xu, S., Wang, J., Liu, Y., & Zhu, S. (2009). Trigeminal schwannomas: A report of 42 cases and review of the relevant surgical approaches. Clinical Neurology and Neurosurgery, 111(3), 261–269. https://doi.org/10.1016/j.clineuro.2008.10.014

71. Zhang, Y. (2025). Application effect of CT and multi-modal MRI in the diagnosis of intracranial tumors. Journal of Imaging Research and Medical Applications, 9(09), 135–137.

72. Zhao, X., et al. (2017). Comparison of clinical features and diagnostic value of CT and MRI in patients with skull base communicating tumor. Chinese Journal of Integrative Medicine and Imaging, (1).

Downloads

Published

2026-07-05

Issue

Section

Scientific and Community Output of the Deanship of Environment and Community Service at 21 September University for Medical and Applied Sciences

Categories

How to Cite

Al-Sharji, A. A. M., Doaa Hussein Ahmed Al-Okad, Najla Najib Ahmed Al-Hazmi, Rudaina Abdul Wahid Al-Sheikh, Suad Mohammed Qasim Al-Qasimi, Samat Saleh Mohammed Al-Dhabri, Walaa Ahmed Mohammed Al-Ghazali, Younes Abdullah Mohamed Al Qadri, & Dr.Ibrahim Al-Hamadi. (2026). Radiological Evaluation of Brain and Skull Tumors Using Computed Tomography . Institutional Repository for Scientific Scholarship at 21 September University for Medical and Applied Sciences, 7(2). https://doi.org/10.65693/irss.2026.v7i2.175

Similar Articles

1-10 of 45

You may also start an advanced similarity search for this article.